The collection of files for making a reduction with a sleeve includes:

Reduction.dwg - Drawing created in AutoCAD 2019
Reduction-1-2.SLDPRT - sleeve model created in Solidworks
Reduction-2-2.SLDPRT - reduction model created in the Solidworks program
Reduction-1-2.STL - export of the sleeve to a format for a 3D printer
Reduction-2-2.STL - export of the reduction to a format for a 3D printer
Reduction.3mf - print file generated by the PrusaSlicer program
Reduction.gcode - data for direct printing on a 3D printer